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특발성 염증성 근육병증에서 Toll-Like Receptor의 발현
김근태 ( Geun Tae Kim ),이준희 ( Jun Hee Lee ),백승훈 ( Seung Hoon Paek ),이정욱 ( Joung Wook Lee ),조미라 ( Mi Ra Cho ),김주인 ( Ju In Kim ),이선희 ( Sun Hee Lee ),김대성 ( Dae Seong Kim ),김성일 ( Sung Il Kim ) 대한류마티스학회 2007 대한류마티스학회지 Vol.14 No.2
Objective: To investigate the expression of toll-like receptor (TLR)-2, 4 and 9 in idiopathic inflammatory myopathies (IIMs). Methods: The expression of TLR-2, 4 and 9 was measured by real-time RT-PCR and immunohistochemical stain (IHS) from muscle tissues in patients with IIMs and controls. Results: The expression levels of TLR-2, 4 and 9 in IIMs were significantly higher than controls. TLR-2, 4 and 9 were mainly expressed on sarcolemma of muscle fibers, perimysial vascular endothelium and infiltrating inflammatory cells in dermatomyositis, whereas, they were mainly expressed on sarcolemma of muscle fibers, destructed muscle fibers, and enodmysial infiltrating inflammatory cells in polymyositis. Conclusion: TLR-2, 4 and 9 were highly expressed in muscle tissue of IIMs. These results suggest that TLR-2, 4 and 9 play a role in pathogenesis of IIMs.